[zozbot234]

The easiest way to conceptualize Rust's design at a basic level (suitable for first-time learners) is probably as a glorified functional language, where you initially pass everything by value (courtesy of .clone()) aside from shared immutable data (passed via shared references). Mutable borrowing can then be introduced next, followed by the "cell" patterns/constructs for shared mutable state. Not altogether trivial, but it seems like it could work. And the compiler would protect against many errors along the way, that bite C/C++ coders.